Essentially, boil is Handlebars plus some extra toys. If a ninja was primarily concerned with generating content he would install this tool. And not tell you.

stream IO interface

CLI interface

library of helpers

recipe management

Yeah it's about populating templates with data but this tool includes extras like helpers, a means for persisting common generation recipes, a streaming interface etc.. You can use it do generate anything from a crafted HTTP POST to a blog. I'll document properly soon.